package com.zhangxi.controller.admin;

import com.zhangxi.dto.DishDTO;
import com.zhangxi.dto.DishPageQueryDTO;
import com.zhangxi.entity.Dish;
import com.zhangxi.result.PageResult;
import com.zhangxi.result.Result;
import com.zhangxi.service.DishService;
import com.zhangxi.vo.DishVo;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

/**
 * ClassName: DishController
 * Package: com.zhangxi.controller.admin
 */
@RestController
@Slf4j
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 新增菜品
     * @param dishDTO
     * @return
     */
    @PostMapping
    @ApiOperation("新增菜品")
    public Result insertDish(@RequestBody DishDTO dishDTO) {
        log.info("新增菜品：{}", dishDTO);

        dishService.insertDish(dishDTO);


        //清理缓存数据
        String key = "dish_" + dishDTO.getCategoryId();
        cleanCache(key);
        return Result.success();
    }

    /**
     * 分页查询
     *
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result page(DishPageQueryDTO dishPageQueryDTO) {
        log.info("菜品分页查询：{}",dishPageQueryDTO);
        PageResult pageResult = dishService.page(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /**
     * 删除菜品
     * @param ids id的集合
     * @return
     */
    @DeleteMapping
    @ApiOperation("删除菜品")
    public Result deleteDish(@RequestParam List<Long> ids){
        log.info("菜品批量删除：{}", ids);
        //执行删除操作
        dishService.deleteBatch(ids);

        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        cleanCache("dish_*");
        return Result.success();
    }

    /**
     * 根据id查询菜品
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品信息")
    public Result getById(@PathVariable Long id ){
        log.info("请求查询的菜品id：{}",id);
        DishVo dishVo = dishService.getById(id);

        return Result.success(dishVo);
    }


    /**
     * 改变菜品的销售状况
     * @param status
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    @ApiOperation("菜品的起售和关闭")
    public Result startOrStop(@PathVariable Integer status,Long id){
        log.info("改变菜品状态：{}",id);
        dishService.startOrStop(status,id);

        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        cleanCache("dish_*");
        return Result.success();
    }

    /**
     * 修改菜品
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation("修改菜品")
    public Result updateDish(@RequestBody DishDTO dishDTO){
        log.info("修改菜品信息：{}",dishDTO);
        dishService.updateWithFlavor(dishDTO);

        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        cleanCache("dish_*");
        return Result.success();
    }

    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping("list")
    @ApiOperation("根据分类id查询菜品")
    public Result getByCategoryId(Long categoryId){
        List<DishVo> dishVos = dishService.getByCategoryId(categoryId);
        //改变新逻辑 -> 直接返回Dish
//        List<Dish> dishes = dishService.list(categoryId);
        return Result.success(dishVos);
    }

    /**
     * 清理缓存数据
     * @param pattern
     */
    private void cleanCache(String pattern){
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
